The government wants all goods that go through customs to be fully checked, said Prime Minister Dr Mahathir Mohamad.

Speaking to reporters after chairing the Cabinet Special Committee on Anti-Corruption meeting today, he said the checks must not be done only at random.

"This government has only been (for) six months, but we already have five meetings on anti-corruption. This shows the government's seriousness looking at corruption, and we have heard seven papers on all the problems and actions to be taken by agencies or certain ministries so that we can minimise corrupt incidences.

"There are many more actions that need to be taken, like to make sure that all items that are being brought in through customs must be fully checked and not only at random," he said.

During the conference, Mahathir said the government also took steps to enhance integrity in all government-linked companies (GLCs) by ordering them to set up their own integrity and governance unit (GIU).

The order, which was issued on Oct 5, also affects all companies owned by ministries and government agencies, including those under state governments.

"In line with our aim to make Malaysia as a corruption-free country, the government has taken steps to enhance and strengthen integrity and corporate governance for GLCs through an order, issued on Oct 5, for them to set up a GIU.

"This GIU is placed under the (respective) companies' board of directors, while the investment execution of core functions will be regulated by the MACC.

"The GLCs are given a two-year grace period to undertake this from the date this order was issued," he said.

Meanwhile, Mahathir said the MACC is investigating an alleged corruption case at a ministry, where the son of its minister was said to be involved in awarding direct-tender contracts.

The minister's son had allegedly controlled the process of projects tendering at the ministry, seeing eight out of 10 contracts were given through direct negotiations.

On MACC reopening its probe into government's purchase of two Scorpene submarines in 2002, Mahathir said he was not aware of it but believed that the anti-graft authority might be looking at it again if they find enough evidence that there was "hanky panky" involved in the purchase.